GB1270664A - Improvements in or relating to the production of electroforms - Google Patents

Improvements in or relating to the production of electroforms

Info

Publication number
GB1270664A
GB1270664A GB41442/68A GB4144268A GB1270664A GB 1270664 A GB1270664 A GB 1270664A GB 41442/68 A GB41442/68 A GB 41442/68A GB 4144268 A GB4144268 A GB 4144268A GB 1270664 A GB1270664 A GB 1270664A
Authority
GB
United Kingdom
Prior art keywords
electro
alloy
mould
mandrel
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB41442/68A
Inventor
Herbert Fernyhough Maddocks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB41442/68A priority Critical patent/GB1270664A/en
Priority to FR6929453A priority patent/FR2017102A1/fr
Priority to US854207A priority patent/US3658660A/en
Priority to DE19691944092 priority patent/DE1944092A1/en
Publication of GB1270664A publication Critical patent/GB1270664A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/04—Electrodes specially adapted therefor or their manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/22—Electrodes specially adapted therefor or their manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

1,270,664. Electro-forming. H. F. MADDOCKS. Dec. 1, 1969 [Aug. 30, 1968], No. 41442/68. Heading C7B. An electro-form e.g. an electro-machining electrode is produced by electro-depositing one or more coatings of metal or alloy e.g. Cu from a Cu pyrophosphate on a mould or mandrel produced from a Zn/Sn alloy having a lower melting point than the coating metal or alloy and removing the mould or mandrell from the coating (s) by immersing the coated mould or mandrel in a liquid e.g. oil having a temperature between the melting points of the coating (s) and mould or mandrel alloy. The electro-form is preferably rotated in the hot liquid and any residue remaining thereon may be eliminated by washing in caustic soda or HCl solution. The Zn/Sn alloy may comprise 92% Sn and 8% Zn, each Œ0À2%, impurities not exceeding 0À05%.
GB41442/68A 1968-08-30 1968-08-30 Improvements in or relating to the production of electroforms Expired GB1270664A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB41442/68A GB1270664A (en) 1968-08-30 1968-08-30 Improvements in or relating to the production of electroforms
FR6929453A FR2017102A1 (en) 1968-08-30 1969-08-28
US854207A US3658660A (en) 1968-08-30 1969-08-29 Articles such as electroforms and method of making same
DE19691944092 DE1944092A1 (en) 1968-08-30 1969-08-29 Method for generating an electroform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41442/68A GB1270664A (en) 1968-08-30 1968-08-30 Improvements in or relating to the production of electroforms

Publications (1)

Publication Number Publication Date
GB1270664A true GB1270664A (en) 1972-04-12

Family

ID=10419709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41442/68A Expired GB1270664A (en) 1968-08-30 1968-08-30 Improvements in or relating to the production of electroforms

Country Status (4)

Country Link
US (1) US3658660A (en)
DE (1) DE1944092A1 (en)
FR (1) FR2017102A1 (en)
GB (1) GB1270664A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082610A (en) * 1997-06-23 2000-07-04 Ford Motor Company Method of forming interconnections on electronic modules
US9031276B2 (en) * 2012-12-07 2015-05-12 Apple Inc. Electroformed housings for electronic devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592614A (en) * 1946-01-08 1952-04-15 Champion Paper & Fibre Co Method of making tubular metallic wave guides
GB750633A (en) * 1952-11-24 1956-06-20 Deutsche Edelstahlwerke Ag Improvements in and relating to electrodes for electro-erosion
GB1155031A (en) * 1965-09-22 1969-06-11 Molins Machine Co Ltd Improvements in Spark Erosion Electrodes

Also Published As

Publication number Publication date
FR2017102A1 (en) 1970-05-15
US3658660A (en) 1972-04-25
DE1944092A1 (en) 1970-04-09

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